SEC Form 3 · accession 0000866273-26-000059
MATRIX SERVICE CO · MTRX
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
David (james) Miller
Officer — VP & General Counsel
Period of report
Aug 25, 2026
Accepted (ET)
Sep 4, 2026 · 10:50 am EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0000866273
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | holding | — | — | — | 20,547 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF2,F1 | — | holding | — | — | — | Aug 30, 2023 | Aug 30, 2026 | Common Stock | 967 | — | D |
| Restricted Stock UnitsF2,F3 | — | holding | — | — | — | Aug 29, 2024 | Aug 29, 2027 | Common Stock | 4,739 | — | D |
| Restricted Stock UnitsF2,F4 | — | holding | — | — | — | Aug 27, 2025 | Aug 27, 2028 | Common Stock | 5,106 | — | D |
| Restricted Stock UnitsF2,F5 | — | holding | — | — | — | Aug 27, 2026 | Aug 27, 2029 | Common Stock | 6,426 | — | D |
Explanation of responses
- F1For this service-based award of Cash-Settled Restricted Stock Units, 25% will vest each year from August 30, 2023 to August 30, 2026.
- F2Each Restricted Stock Unit is the economic equivalent of one share of Matrix Service Company Common Stock. All Restricted Stock Units are settled solely in Cash when vested.
- F3For this service-based award of Cash-Settled Restricted Stock Units, 25% will vest each year from August 29, 2024 to August 29, 2027.
- F4For this service-based award of Cash-Settled Restricted Stock Units, 25% will vest each year from August 27, 2025 to August 27, 2028.
- F5For this service-based award of Cash-Settled Restricted Stock Units, 25% will vest each year from August 27, 2026 to August 27, 2029.